期刊
SOLID STATE COMMUNICATIONS
卷 152, 期 18, 页码 1791-1794出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2012.07.004
关键词
Antiferroelectrics; Crystal growth; Domains; Dielectric response
资金
- National Natural Science Foundation of China [50272030, 50572048, 50972071, 51172118]
- State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University
Antiferroelectric (Pb, La) (Zr, Sn, Ti)O-3 (PLZST) single crystals have been successfully grown by flux method using PbO-PbF2-B2O3 as the flux. The obtained crystals are pale yellow in color and translucent. Domain structures, dielectric constants and optical transmission measurements have been performed on the < 001 >-oriented PLZST single crystals. Two types of domains, namely, 90 degrees and 180 degrees domains, are observed. The extinction of 90 degrees domains at P/A: 0 degrees reveals a tetragonal structure in the crystal. The sequence of phase transitions from antiferroelectric to ferroelectric and then paraelectric has been established with increasing temperature. According to the modified Curie-Weiss relationship, the PLZST crystal is in an intermediate state between normal and relaxor antiferroelectrics. The broad optical transparent region (from 0.4 to 7.0 mu m) and high optical transmittance (up to 65%) indicate that PLZST crystals are promising for optical uses. (C) 2012 Elsevier Ltd. All rights reserved.
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